The Norwesco 1325 Gallon HDPE Horizontal Leg Tank in blue is a free-standing horizontal tank built for fertilizer, deicer, and chemical haul-and-store duty where you need volume on a flat pad without a separate stand. Molded from polyethylene with a 1.9 specific gravity rating, it carries dense ag and water-treatment liquids that would over-stress a lower-SG tank. The integrated legs and contoured bottom keep the center of gravity low for transfer-station and applicator-skid use. This is the tank people search for as a Norwesco horizontal leg tank, an HDPE horizontal tank for heavier liquids.
Will it work for your job
At 1,325 gallons, plan your loading around weight, not just volume. Filled with water this tank carries roughly 11,050 lb of contents; at its maximum rated content density it is engineered to hold up to 20,996 lb. Water, deicing brine, fertilizer blends, and acids all weigh differently per gallon, so confirm your liquid's weight against the 20,996 lb ceiling before you fill to the brim. Because it is free-standing on a flat pad, size your pad or skid for the heaviest liquid you will run: on water alone it loads the pad at roughly 11,050 lb of liquid, and up to the 20,996 lb content ceiling on a dense blend. Use the Tank Sizing Calculator and the Tank Sizing Guide to match capacity to your actual draw-down and weight budget. At a 1.9 specific gravity rating this is Norwesco's highest-density leg-tank class for this size, so there is no higher-SG step-up to move into; if your liquid exceeds a 1.9 SG or the 20,996 lb load, call us at 866-418-1777 before ordering.
Chemical compatibility
This is a polyethylene tank with a 1.9 specific gravity rating. The resin designation on file is unconfirmed, so before you commit it to any chemical service, confirm whether your specific unit is HDLPE or XLPE with us at 866-418-1777. Every chemical below is concentration- and temperature-specific; always cross-check your exact concentration and operating temperature against the OEM chemical-resistance chart before service. Two entries are hard ceilings, not just data points: sodium hypochlorite is rated only below 16.5% concentration and ozonated water only up to 10 PPM, so higher strengths are outside this listing.
Gasket selection is where most chemical-service mistakes happen on a tank like this. EPDM gaskets cover most of the list below, but sulfuric, phosphoric, hydrochloric, hydrofluoric, hydrofluosilicic, hydrogen peroxide and sodium hypochlorite require Viton, and peracetic acid requires Aflas - do not substitute EPDM on those. Compatible chemicals and the recommended fitting and gasket materials are: Acetic Acid at 60% (PP/PVC, EPDM), Aluminum Sulfate at 50% (PVC, EPDM), Calcium Chloride at 40% (PVC, EPDM), DEF at 32.5% (316SS, EPDM), Ethylene Glycol at 100% (PVC, EPDM), Ferric Chloride at 50% (PVC, EPDM), Ferric Sulfate at 60% (PVC, EPDM), Ferrous Sulfate at 20% (PVC, EPDM), Hydrochloric Acid at 37% (PVC, Viton), Hydrofluoric Acid at 48% (PP/PVC, Viton), Hydrofluosilicic Acid at 26% (PP/PVC, Viton), Hydrogen Peroxide at 50% (PVC, Viton), Magnesium Chloride at 30% (PVC, EPDM), Peracetic Acid at 30% (316SS, Aflas), Phosphoric Acid at 85% (PVC, Viton), Polyaluminum Chloride (PVC, EPDM), Potassium Carbonate at 50% (PVC, EPDM), Potassium Hydroxide saturated (PVC, EPDM), Propylene Glycol (PP/316SS, EPDM), Sodium Bisulfate (PVC/PP, EPDM), Sodium Bisulfite (PVC/PP, EPDM), Sodium Carbonate at 30% (PVC, EPDM), Sodium Hypochlorite below 16.5% (PVC, Viton), Sodium Thiosulfate at 40% (PVC, EPDM), Sulfuric Acid at 98% (CPVC, Viton), Urea Solution at 50% (PP/PVC, EPDM), Zinc Orthophosphate (PP/316SS, EPDM), and Ozonated Water up to 10 PPM (PVC, EPDM). See the full chemical compatibility resource for the concentration- and temperature-specific OEM chart.
The mistake to avoid
The single most common error on a tank this size is filling a dense liquid to the volume line instead of the weight line. The 1.9 SG rating and 20,996 lb max content weight are your real limits; a fertilizer blend or heavy brine can hit that ceiling well before the tank looks full. The second mistake is guessing the resin - because the resin designation on file is unconfirmed, confirm HDLPE versus XLPE on your unit before committing it to chemical service. Fittings are not specified on file for this listing, so confirm the as-built fitting package on your unit with us at 866-418-1777 rather than assuming a layout. For fertilizer-specific guidance on blend stratification and DOT scope, see our guides on Norwesco applicator and leg tanks for fertilizer, portable utility tanks and the 49 CFR 173.5 agricultural exemption, and fertilizer-blend tank stratification. You can also reference the technical drawing on this page.
This tank ships LTL freight from the Norwesco plant in Lancaster, OH, quoted live to your ZIP. Get an exact rate with the Freight Cost Estimator, or call 866-418-1777 to confirm the resin, fitting package, and lead time before you order.
